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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1240 IBM Security Bulletin: Multiple Security Vulnerabilities Affect IBM WebSphere Application Server in IBM Cloud 11 April 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: WebSphere Application Server in IBM Cloud Publisher: IBM Operating System: Linux variants Impact/Access: Denial of Service -- Remote/Unauthenticated Cross-site Scripting -- Remote with User Interaction Provide Misleading Information -- Remote/Unauthenticated Unauthorised Access -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-4046 CVE-2019-4030 CVE-2018-17199 CVE-2018-1902 Reference: ESB-2019.1180 ESB-2019.1161 ESB-2019.0742 ESB-2019.0680 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm10870320 - --------------------------BEGIN INCLUDED TEXT-------------------- Multiple Security Vulnerabilities Affect IBM WebSphere Application Server in IBM Cloud Product: WebSphere Application Server in IBM Cloud Software version: All Versions Operating system(s): Linux Reference #: 0870320 Security Bulletin Summary There are multiple security vulnerabilities that affect the IBM WebSphere Application Server in the IBM Cloud. There is a potential spoofing vulnerability in IBM WebSphere Application Server. There is a vulnerability in the IBM HTTP Server used by WebSphere Application Server. There is a potential cross-site scripting vulnerability in the Admin Console for WebSphere Application Server. There is a potential denial of service vulnerability in WebSphere Application Server. Vulnerability Details CVEID: CVE-2018-1902 DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker to spoof connection information which could be used to launch further attacks against the system. CVSS Base Score: 3.1 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 152531 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N) CVEID: CVE-2018-17199 DESCRIPTION: Apache HTTP Server could allow a remote attacker to bypass security restrictions, caused by checking the session expiry time before decoding the session by mod_session. An attacker could exploit this vulnerability to ignore session expiry time and gain access to the application. CVSS Base Score: 5.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 156006 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) CVEID: CVE-2019-4030 DESCRIPTION: IBM WebSphere Application Server is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. CVSS Base Score: 5.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 155946 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) CVEID: CVE-2019-4046 DESCRIPTION: IBM WebSphere Application Server is vulnerable to a denial of service, caused by improper handling of request headers. A remote attacker could exploit this vulnerability to cause the consumption of Memory. CVSS Base Score: 5.9 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 156242 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H) Affected Products and Versions This vulnerability affects the following versions and releases of IBM WebSphere Application Server in IBM Cloud: o Liberty o Version 9.0 o Version 8.5 Remediation/Fixes To patch an existing service instance, refer to the IBM WebSphere Application Server bulletins listed below o Potential Spoofing vulnerability in WebSphere Application Server (CVE-2018-1902) o Security vulnerability in the IBM HTTP Server (CVE-2018-17199) o Cross-site scripting vulnerability in WebSphere Application Server Admin Console (CVE-2019-4030) o Potential denial of service vulnerability in WebSphere Application Server (CVE-2019-4046) Please see Updating your environment in the KnowlegeCenter for information on applying service. Alternatively, delete the vulnerable service instance and create a new instance. Workarounds and Mitigations None. Additional Bluemix Alert Information Monitor the Bluemix console ( https://console.ng.bluemix.net/status/ ) for additional important product alerts. Reference Complete CVSS v3 Guide On-line Calculator v3 Related Information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Change History 09 April 2019 - Original document published *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin. Disclaimer According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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